Granitoid magmatism in the Arminskii block of Central Sikhote Alin (Primorye, Far Eastern Russia): U–Pb geochronology, 3He/4He isotopy, petrochemistry, and ore mineralization

Resumo

This work presents the first isotope-geochronological data obtained for granitoid series of the Arminskii block of Central Sikhote Alin: Tatibi gabbromonzodiorite and Olgino leucocratic granite. Every series is characterized by a certain structural position and timing of the formation of ore mineralization. The Tatibi series is characterized by the presence of gold-ore occurrences including the potential Glukhoe goldore occurrence. Granitoids of the Olgino series comprise known tin–sulfide ore occurrences. The conditions for the generation of each series of rocks were revealed on the basis of geochronological-isotope data.